we exchanged our email address so that we could keep touch with each other later.这个句中应该改什么?要不要把 could 改成can

Maybe it is because we have seldom sat down and exchanged about our feelings and thoughts中哪错了请解释一下 we exchanged our email address so that we could keep touch with each other later.这个句中应该改什么?要不要把 could 改成can Maybe that's why we have seldom sat down and exchanged our feelings and thoughts.这句话为什么没错可以用have We have exchanged e-mails and made a call but we've never seen _____ yetactually?entirely? 英语翻译要求翻译能教严谨专业分数不多望高手帮忙啊2.电子邮件订单 Dear Sir,We are writing to urge your confirmation of our order for furniture.Asreminders,enclosed are the copies e-mails exchanged recently between us.From o 英语翻译Information,knowledge,and culture are central to human freedom and human development.How they are produced and exchanged in our society critically affects the way we see the state of the world as it is and might be; who decides these ques EMA是什么意思? EMA是什么 EMA是什么意思 EMA是什么 ema member We s__love our motherland. we have done our We believe,our future. we have our we brush our( )(tooth) We miss our nana We accomplished our goal